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GFORMULA: Stata module to implement the g-computation formula for estimating causal effects in the presence of time-varying confounding or mediation

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Author Info

  • Rhian Daniel

    ()
    (London School of Hygiene and Tropical Medicine)

Abstract

gformula is an implementation of the g-computation procedure, used to estimate the causal effect of time-varying exposure(s) (A) on an outcome (Y) in the presence of time-varying confounders (L) that are themselves also affected by the exposure(s). The procedure can also be used to address the related problem of estimating controlled direct effects and natural direct/indirect effects when the causal effect of the exposure(s) on an outcome is mediated by intermediate variables, and in particular when confounders of the mediator-outcome relationships are themselves affected by the exposure(s).

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File URL: http://fmwww.bc.edu/repec/bocode/g/gformula.ado
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File URL: http://fmwww.bc.edu/repec/bocode/g/gformula.sthlp
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File URL: http://fmwww.bc.edu/repec/bocode/c/ChkIn.ado
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File URL: http://fmwww.bc.edu/repec/bocode/d/detangle.ado
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File URL: http://fmwww.bc.edu/repec/bocode/f/formatline.ado
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File URL: http://fmwww.bc.edu/repec/bocode/g/gformula_.ado
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File URL: http://fmwww.bc.edu/repec/bocode/g/gformula_example.do
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File URL: http://fmwww.bc.edu/repec/bocode/m/mediation.dta
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File URL: http://fmwww.bc.edu/repec/bocode/g/gformula_Daniel_DeStavola_Cousens.pdf
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Bibliographic Info

Software component provided by Boston College Department of Economics in its series Statistical Software Components with number S457204.

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Programming language: Stata
Requires: Stata version 11
Date of creation: 23 Nov 2010
Date of revision: 22 Jan 2013
Handle: RePEc:boc:bocode:s457204

Note: This module should be installed from within Stata by typing "ssc install gformula". Windows users should not attempt to download these files with a web browser.
Contact details of provider:
Postal: Boston College, 140 Commonwealth Avenue, Chestnut Hill MA 02467 USA
Phone: 617-552-3670
Fax: +1-617-552-2308
Email:
Web page: http://fmwww.bc.edu/EC/
More information through EDIRC

Order Information:
Web: http://repec.org/docs/ssc.php

Related research

Keywords: g-computation; causal effect; time-varying exposure; time-varying confounders;

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